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18 Cards in this Set
- Front
- Back
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Which animal does blood flow from the pulmacutaneous circulation to the heart before circulating through the rest of the body?
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frog
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What would happen if an embryo could not produce human chorionic gonadotrophin?
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The corpus luteum would degrade
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As embryo develops, new cells are produced as the result of :
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Cell division
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Which sequence of blood flow can be observed in either a reptile or a mammal?
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vena cava--->right atrium--->ventricle--->pulmonary circuit
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What has receptors molecules that are specific for binding proteins on the acrosomal process?
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The vitelline layer of the sea urchin egg
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In an egg cell treated with EDTA, a chelator that binds to divalent cations,
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the fertilization envelope would not be formed
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Where are gametes shed by mating partners stored in some female insects
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spermatheca
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What does the process of digestion of fats to fatty acids and the process of proteins being digested to yield amino acids have in common?
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they both involve the addition of a water molecule to break bonds (hydrolysis)
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What are the fluids that primarily make up the prostate gland fluid?
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citrate and anti-coagulating enzymes
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Where is testorone primarily synthesized?
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Leydig Cells
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Where are semilunar valves to be found in the mammalian heart?
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At places where the blood leaves via the aorta and pulmonary arteries
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What is the substrate of salivary amylase?
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starch
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Intracellular digestion of peptides is usually immediately preceded by which process?
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Endocytosis
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The portion of the frog embryo that will become the dorsal side develops from the
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gray crescent
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What occurs during gastrulation?
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Embryonic germ layers are formed
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In chronological order, the three phases of the ovarian cycle are
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follicular--->ovulation---> luteal
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What is activated during the process of blood clotting?
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prothrombin is activated to thrombin
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The primitive streak in a bird is the functional equivalent of
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the lip of the blastospore in the frog
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